Motor shears



ATTGRNEYS 4` 1927. Jan A. s. REICHEL MoToR sHEABs Filed Sept. 22 1925 2sheets-sheet 2 L J. 3 w

WITN

has a socket 42 receiving a pawl or other similar enlargement 43 on theend of the movable shear member 20.

it is of course to be understood that any suitable electric switch maybe provided on the shears Within easy reach of the opera tor so that hecan open and close the electric circuit to the motor 2 at will.

rlhe operation is as follows:

lWhen the motor 2 is started motion is transmitted as follows: Motorshaft 3 drives the pinion 22 and through the medium of gear 23, pinion28 and gear 29 with the crank pin 3l thereon rocking motion orOscillatin@P motion is imparted to the rocker arm 33, andthis rocker arm33 imparts rocking motion to the socket member 39 with which the blade2O is coupled, so that this blade 2O is caused to move on its pivot 21.

rlhe construction above described gives great power to the shears andthe mechanism occupies but a relatively small space. Hence l am enabledto cut relatively thick sheet metal and can manipulate the shears so asto cut in any direction from almost any angle.

Various slight changes and alterations might be made in the general formof the parts described Without departing from my invention, and hence Ido not limit myself to the precise details set forth but ,considermyself at liberty to make such slight changes.

and alterations as fairly fall Within the spirit'and scope of theappended claims.

I claim:

l. A device of the character described, including a gear casing, a powershaft projecting into the gear casin a fixed shear blade, a movableshear bla e, a rocker arm mounted in the casing, a socket memberoperatively engaging the rocker arm and Inovably connected to themovable shear blade, a gear Wheel located in axial alinement with thedrive shaft, a crank pin on the gear wheel operatively connected to therocker arm, and a gear train transmittinfr motion from the power shaftto the said llast-mentoned gear.

2. A device of the character described, including a motor casing, ahandle fixed to one end of the casing, a gear casing fixed to the otherend of the motor casing, a rocker arm pivotally mounted in the gearcasing and having longitudinal recesses in opposite sides thereof, acovering plate secured to the gear casing and having a guide slottherein, asocket member movable in said slot, plates on the socketmember covering the slot, a shear blade iined to the casing, a movableshear blade operatively connected to the socket member, a gear Wheel inthe casing, a crank pin on the casing engaging in one of the grooves inthe rocker arm, a motor shaft projecting into the gear casin and a geartrain connecting the shaft Wit the irst-mentioned gear Wheel.

ALVIN S. REICHEL.

